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帆鱼偏好行为中的个体变化细化了伴侣偏好神经转录组路径

Rebecca L Young¹, Sarah M Price¹, Molly Schumer^2,3

¹Department of Integrative Biology University of Texas Austin Texas USA.

Ecology and evolution

|July 26, 2023

概括

雌性帆毛表现出明显的基因表达,与伴侣选择与社会分组有关. 免疫系统基因在神经可塑性中起着令人惊的作用,影响伴侣偏好决策.

科学领域:

行为神经基因组学行为神经基因组学
进行比较的基因组学.
社会行为社会行为.

背景情况:

社会互动显著影响基因表达,有上下文依赖的变化.
了解社会偏好的基因组基础对于行为研究至关重要.

研究的目的:

为了确定与不同社会背景 (男性与女性相互作用) 的雌性帆母的偏好行为相关的基因组资料.
为了研究基因表达在伴侣选择与伴侣偏好的基因表达的作用.

主要方法:

在30分钟的社交互动后,从雌性帆 (Poecilia latipinna) 的整个大脑中进行转录基因分析 (RNA测序).
利用线性模型 (limma) 和加权基因共同表达网络分析 (WGCNA) 来分析与行为变异相关的基因表达数据.
专注于表现出高度社会归属和各种偏好行为的人.

主要成果:

行为变异占基因表达差异的数量级比社会背景差异多.
鉴定出了一组精细的401个基因,与伴侣偏好强烈相关,独立于群偏好.
鉴定的基因证实了神经可塑性通路的参与,并揭示了免疫系统基因本体学类别的显著丰富.

结论:

雌性帆母的基因表达特征对社会环境中的个体行为变化高度敏感.
一组核心基因,包括与免疫系统相关的基因,与伴侣偏好密切相关,可能是通过神经可塑性.
这项研究强调了免疫功能基因与基础上复杂的伴侣选择决策的神经过程之间的新联系.

关键词:

大脑大脑大脑的大脑大脑选择伴侣选择伴侣选择偏好行为偏好行为.社会上的归属关系.社会背景社会背景社会背景转录组 (transcriptome) 是一个转录组.

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